I am going to try and update my blog to include some of the travelling I did. I lost most of my pictures so I had to wait until some of my friends posted their pictures online so that I could use them.
They had sections where houses, hostels, chairs, tables, and nearly everything was made of salt blocks. I am not sure how it works or what it is mixed up with so that it doesn't melt in the rain. But it looked pretty neat.
This is the largest salt flat in the world. I believe a salt flat is a salt lake that dries up in the dry season and may be a lake during times of rain. Depending on the time of year you go, it is either all lake, all dry white land, or a mix as in the time I went. It looks like you are on another planet, with nothing as far as the eye can see except mountains in the distance and either water or a white snowy looking flat land.